178 ORDER ACANTHOPTERYGII. 



smooth, and covered with brown scales ; they inhabit 

 both oceans \ 



DlPTERODON 



A neighbouring genus, in which the teeth are also 

 trenchant, but cut sloping, and not bent at an angle ; 

 the spinous portion of the dorsal separated from the 

 soft part by a deep emargination. This genus, the 

 name of which is borrowed from Lacepede, does not 

 however contain the same species. 



Dipt, capensis, Cuv., is the only species known. 



The following genera, which we place next to 

 chaetodon on account of their scaly fins, differ greatly 

 from it, however, in the teeth with which their pala- 

 tines and vomer are furnished. The genus 



v Brama, Bl., Serin., 3 



Is connected with this family, the scales, covering the 

 vertical fins, which have but a small number of 



1 The Phneloptere bosquien, Lacep. IV. ix. 1. or Chcetodon 

 cyprinaceus, Broussonet. The Pirn, marciac, Quoy and Gaym., 

 Voy. Freycin. pi. lxii. f. 4. Pirn, du Cap, or Kiphose double bosse, 

 Lacep. III. viii. 1. A Brazil species formerly named by Banks 

 Chcetodon ensis. 



2 This genus, the name of which is borrowed from Lacep. does not, 

 however, contain the same species. 



3 I strongly suspect that it is the Brama which M. Rafinesque has 

 in view, in his Lepodus saragus, Nuov. Gen. No. 144. Shaw makes 

 two species of it, but why, it is impossible to say, the Sp. Rail, and 

 Sp. castaneola, the latter after Lacep., but Lacep. made his genus 

 only for the species of Bloch and Ray. 



